kimberlyguti04 kimberlyguti04
  • 14-04-2020
  • Mathematics
contestada

Solve using substitution.
8x + 5y = 4
x = 3
What is x and y?

Respuesta :

candyfood299
candyfood299 candyfood299
  • 14-04-2020

Answer: y=-4

Step-by-step explanation:

8(3)+5y=4

24+5y=4

subtract each side by 24

5y=-20

divide by 5

5 y=-4

Answer Link
logandol logandol
  • 14-04-2020

Answer: x = 3 : y = -4

Step-by-step explanation:

8x + 5y = 4

8(3) + 5y = 4

5y = 4 - 8(3)

5y = 4 - 24

5y = -20

(5y)/5 = -20/5

y = -4

Answer Link

Otras preguntas

Is 3/7 and 7/3 the same on the number length in the fraction line?
Given that cos (x) = 1/3, find sin (90 - x)
A car travels 83 7/10 miles on 2 1/4 gallons of fuel which is the best estimate of miles the car travels on one gallon of fuel
How can you use a rate to compare the costs of two boxes of cereal that are different sizes?
What are the differences between Hamilton and henry views of the constitution
arranged from least to greatest. -6.6, 5.8, -6 3/4, 27/5, -5 5/8
Which number will have the same result when rounded to the nearest ten or hundred A-97 B-118and5 C-179 D-5091
The ratio of boys to girls in a class is 5 to 6 which is an equivalent. Ratio
How do I graph inequalities
What is the answer for p/2=3/4+p/3